A 2-2-hole is a horizonless self-gravitating solution of quadratic gravity that is sourced by normal matter [1]}, [2]}, [3]}. It reproduces the Schwarzschild solution down to radii of order a proper Planck length from the would-be horizon. Its interior is characterized by ultra-Planckian curvature and small proper volume. The interior also displays a simple scaling law with respect to the 2-2-hole mass \(M\) . From this scaling law it can be deduced that the total entropy of the matter contained within satisfies an area law that is similar in size to the entropy of the same mass black hole.
